C13 (Dubs) Class Steam Engine

C13 (Dubs) Class Steam Engine

Queensland Railways C13 (Dubs) Loco**

In 1879 Queensland Railways took delivery of two 2-8-0 steam locos built by Baldwin in the United States. In 1883 and 1884 QR took delivery of a further six loco built to the same design but this time the builder was Dubs in the United Kingdom.

These locos were originally referred to as ‘Small Consolidations’ but, along with the two Baldwin locos, were subsequently classified as the C13 class and later still the classification was changed to C13 (Dubs) class to differentiate them from the early Baldwin locos.

At the time these locos were introduced the railways north of Brisbane consisted of a number of unconnected lines reaching inland from a number of ports including Maryborough and Bundaberg and it was to these two centres that the Dubs locos were sent.

These locos were originally referred to as ‘Small Consolidations’ but, along with the two Baldwin locos, were subsequently classified as the C13 class and later still the classification was changed to C13 (Dubs) to differentiate them from the early Baldwin locos.

Four of the locos went to Maryborough and two went to Bundaberg where they were assigned local numbers

Maryborough Engines

Builders No: 1755

Local No: 9

Date in service: 11.83

Date withdrawn: 10.22

Builders No: 1754

Local No: 11

Date in service: 12.83

Date withdrawn: 10.22

Builders No: 1753

Local No: 10

Date in service: 11.83

Date withdrawn: 10.22

Builders No: 1752

Local No: 12

Date in service: 01.84

Date withdrawn: 03.25

Bundaberg Engines

Builders No: 1756

Local No: 4

Date in service: 12.83

Date withdrawn: 10.26

Builders No: 1757

Local No: 5

Date in service: 12.83

Date withdrawn: 02.27

Despite being relatively light locos it wasn’t long before the relatively long rigid wheelbase of the Bundaberg locos were causing problems on curves on the Mt Perry branch that had originally been layed with 30lb rail.

In 1889 the previous classification method was replaced with a more uniform system and the these locos received new numbers as shown below:

Maryborough Locos

9 – 112

10 – 113

11 – 114

12 – 115

Bundaberg Locos

4 – 116

5 – 117

During 1904 and 1905 all six locomotives of the C13 (Dubs) class were rebuilt and when the locomotives emerged from the workshops they had a raised boiler, a deeper firebox and the smokebox had been extended. These changes altered the appearance of the locos and the above photo shows the original appearance of the class.

The last locomotive in the C13 (Dubs) class to remain in service was 117 which was used as a washout loco at Toowoomba for some years.

Technical Details

Wheel arrangement: 2-8-0

Driving wheel diameter: 32"

Boiler pressure: 120lb (150lb when rebuilt)

Cylinders: 13×16

Tractive effort: 7,600lb (10,140 when rebuilt)

Coal capacity: 3 tons

Water capacity 1,330 gallongs

Weight: 18 tons (23 tons when rebuilt)

Valve gear: Stevenson

**The State Library of Queensland record this photo as being of No. 9 of the Maryborough Railway and report that this loco had it’s first trial trip on November 2, 1883.

References
Photo courtesy of State Library of Queensland
Technical details: http://www.qrig.org